/*
 * Copyright (C) 2005-present, 58.com.  All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.wuba.wlock.server.filter;

import com.wuba.wlock.server.util.IpTablesFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.net.InetSocketAddress;
import java.net.SocketAddress;

public final class IptablesFilter implements IFilter {

	private static final Logger logger = LoggerFactory.getLogger(IptablesFilter.class);

	private static IFilter iFilter = new IptablesFilter();

	private IptablesFilter() {
	}

	public static IFilter getInstance() {
		return iFilter;
	}


	@Override
	public boolean filter(SocketAddress address) {
		boolean filterd = false;
		if (address == null) {
			return filterd;
		}
		String ip = ((InetSocketAddress) address).getAddress().getHostAddress();
		if (null != ip) {
			return IpTablesFactory.isForbid(ip);
		}
		return filterd;
	}
}
